Cooperative cold and hot-water bib cock



Oct. 3, 1933.- 5 J CARMODY 1,929,054

COOPERATIVE COLD AND HOT WATER BIB COCK Filed Oct. 29, 1931 2 Sheets-Sheet l INVENTOR, SW41 l my.

ATTORNEY.

1933- s. J. CARMODY COOPERATIVE COLD AND HOT WATER BIB COCK Filed Oct. 29, 1951 2 Sheets-Sheet 2 IN V EN TOR,

Patented Oct. 3, 1933 UNITED STATES COLD AND HOT-WATER BIB CO COOPERATIVE Stephen J. Cannody, Belllnghain, Wash. Application October 29, 1931. 'Serial No. 571,766 4 Claims. '(Cl. 277-) My invention relates to improvements in cooperative cold and hot-water bib-cocksand is an improvement on an invention of mine for which I have applied for Letters Patent Serial No. 565,961,

5 filed Sept. 30, 1931', and has for an object to replace the gears used in said earlier invention with cam. surfaces. 7 v

Another object of my invention is to provide mechanism suitable for operating a pair of cold and hot-water pressure bib-cocks separately and jointly.

Other objects of my improvement will appear as the description proceeds. 1

I attain these and other objects of my improvement with the mechanism illustrated in the accompanying two sheets of drawings, forming a part of this specification, in which Figure l is an elevation view thereof one-half of which is shown in section on a medial vertical plane, Fig. 2 is a top plan view of Fig.1 in which the fragmentary section of the bowl or tub is omitted, Fig. 3 is a bottom plan view of the cam, Fig. 4 is a portion of the cam periphery developed and Fig. 5 is the remainderof said developed cam periphery.

Similar characters refer I to similar parts throughout. 1 r

With more particular reference to the designated parts: The delivery'end of cold water pipe 6 connects with a source of cold water under pressure, notshown; The main body 7 of the cold water cock has outlet a7, and is connected to pipe 6.

The delivery end of hot water pipe 8 connects with a source of hot water under pressure, not shown, and connects with the main body of hot water cock 9. Outlet a9 of the hot water cock unites with the said outlet ofqthe cold water cock and both join the lower end of stand pipe 10.

Cold water valve seat 11 surrounds opening all providing communication between the cold water supply and the cold-water outlet a7. Spring chamber 12 communicates with outlet a7 below through opening .13 and with a gland chamber above through opening 14. Gland screw is engaged in the tapped upper end 15 of said gland chamber.

Cold water valve 16 has gasket 1'7 between the .same and valve seat 11. The cold water valve stem-is structurally in two parts, the lower part 18 being of smaller diameter. vIts lower end is fastened to valve 16 and extends through valve inlet all across the outlet chamber and enters the spring chamber 12 through opening 13 and extends across said spring chamber and is screwed into the tapped lower end of the larger upper part 19 of the cold water valve stem. Spring 24-is mounted on the'upper end of the lower part 18 of the valvestem and reacts between the bottom wall of spring chamber 12 and the lower end 20 of the upperpart 19 of the valve 9 stem, tending to retain valve 17, on seat 11. The upper end 19 of the valve stem is mounted for reciprocation in opening 14 and glandscrew 25 through which it is extended. and it is surrounded by gland packing 26 in the gland providing a water-tight, opening in which it may reciprocate.

The upper end of valve stem 19 is forked and the prongs 21, 211thereof mount wheel 22therebetween on pin. 23 for revolution.

The interior construction of the hot water cook '79 is preferably the same as that of the cold water cock above described in detail. Through: the opening of gland screw 27 of the hot water-cock is extended valve stem 28 the upper end of which is forked, between the tines 29, 29 of which is mounted wheel 30 for revolution onpin 31.

Opposite the upper ends of valve stems 1'9 and 28 on stand'pipe 10 is ring. boss 32 which serves as a foot step for the lower endof. cam hub (133 which bears thereon. The upperend of'the 5 cam hub is extended as sleeve 34. Cam disc 33 has the central hole b313, is integral with hub a33 and on its circular periphery is cam flange 48-extended downward, and on the bottom edge or flange 48 or the cams for operating the valves, {55 preferably, are disposed.v

Cam sleeve 34 is extended through an-opening in thebowl or tub wall A and to its upper end is fastenedhandle 35 which may be grasped by a hand for revolving or oscillating cam flange 48. "Annular shank 36 of handle 35 is used to fasten the handle to sleeve 34 by aid of screw 37 which is extended through a tapped hole in the shank and impinges on the sleeve. Loose sleeve am has the upper end of sleeve 10 extended therethrough and its lower end bears on the upper edge of handle shank 36, while its upper end is preferably flush with the upper end of said sleeve 10. v 7

Nozzle 38 has a closed upper end and'a threaded lower end 39 of reduced diameter engaged in the threaded upper end of stand pipe 10. Shoul- -der a38 thus provided at the lower end of the nozzle is opposite the top of the standpipe and gasket 40 is placed therebetween and may be clamped and caused to expand in diameter when the nozzle is extended further into the stand pipe. Openings 41 through the side walls. of nozzle 38 provide outlets for water from the hot and cold water cocks. J

Spout 42, which is provided for a joint outlet for both cocks, has base 42 with closed top 43 mounted on nozzle 38 for revolution and retained in place thereon by cap screw 44 extended through a central opening in top 43 and engaged in a tapped hole in the closed end of the nozzle. Annular boss a42 isprovided around the bottom edge of the nozzle base bearing ong top of sleeve (:10 and around the top edge thereof. When gasket 40 is expanded by pressure from the nozzle shoulder 'a38 it bears on the inner wall of spout base (142 and seals the same against the passage of water therefrom.

Four cams are providedfto cooperate' in con-, trolling the valves in cocks 7 and 9, on the bot tom edge'of flange 48. The centers'ofithese'cams are located at c-c, dd, ,e-+e and.f.-,f in Figs. 3, 4 and 5. Preferably, as illustrated; they each consist of a connected series of arcs of small radii disposed in the cam curve. Cam c-c rises from the neutral or zero' surface-70 at-49-from whence an arc of larger radius joins arcs 50 and 51 of smaller radius and the latter connects with a chain-of short radius arcs 52, 53, 54, thelatter joining larger radius arc'55 which. springs from the zero surface. Of this chain of arcs 52 is at the crestof the cam curve farthest from'zero. Cam d drisesfrom.the zero surface at 56. whence a larger radius arc joins a chain of smaller radius arcs beginning'with are 57 and continuing throughiarcs 58, 59, 60

,:and 61 the latter. joining larger radius arc: 62

which springs from the zero surface. Of this chain of arcs 59 is'at the crest of thecam curve.

,Cam ee rises from. zero surface'a't'63 lwhence a larger radius arc joins. a chain of smaller radius arcs beginning with arc. 64 and continuing through arcs 65, 66, 6'7 and 68, the latter joining larger'radius are 69. which springs'from the zero surfacer'lO. Cam ff rises from the zero .surface at 71 whence'a larger radiusarc: joins a "smaller radius-arc '72 which in turn 'joins a chain consisting of arcs 73, 74, '75and ;76; the latter joining larger radius arc '77 which'springs from the zero surface.

J Wheels22 and 30'are disposed to bear at opposite ends of a diameter on the lower edge of flange 48 while forks 21 and 29 enfold said flange 'maintaining said wheels properly alined beneath said flange edge. As illustrated, said wheels bear on zero surface '70 allowingv the .cockvalves to bear on their seats, as :valve, 16, 1'7 onseat 11, in

Fig. 1, under the ,action of spring 24 .and the pressure of any pressure water in pipes6.

-' In operation: Assume pipe 6 to be connected pipe 8 to be connected with a :source .of hot waterunder pressure. Turn spout 42 in'the direction indicated bythe arrow to a desired position over the bowl or .tubwhich the'valves are assumed to be serving. Turn handlef35 clock- ,wise, thereby turning cam flange 48 bringing larger radius are 49. over wheel 22, gradually forcing piston rod 19 and valve 16,17 thereon downward againstspring 24 and the water pressure againstthe-lower surface of said valve.

Because of the small angularity of arc 49 relative to the zero surface '70 no great force applied to handle 35 is required to overcome the strength I 16. Once the valve is clear of its seat and water flowing thereover a greatpart of the water pressure is relieved from the valve and continued opening of the valve is relatively easy.

of spring 24 and the water pressure against valve By moving handle 35 further in a clockwise dithe spout.

rection notch 50 engages wheel 22 when, if desired, the handle may be relieved of pressure and the cam will remain in that location while a small stream of cold water flows from spout 42. By

continuing the clockwise movement of the handle notch 51 will engage the wheel causing additional downward movement of the valve and allowing a largerstream of cold water to flow from the spout. Another clockwise handle movement will bring notch 52 to engage the wheel when the full flow of cold water will proceed from the spout because this notch is at the crest of cam cwc and the cold water valve is fully open. As the clockwise movement of handle 35 is continued lower parts of the cam pass over the wheel allowing it to rise which permits the valve to approach its seat. Thus the cold water stream will be made smaller 'and'smaller as notches 53 and 54 in turn pass over wheel 22 and when larger are 55 reaches the wheel it quickly moves upward over the same and again comes to bear on the zero surface '70 allowing the valve to fullyclose and flow of cold water from the spout ceases.

J During the time that cam c-c has been passing over wheel 22 cam ee has been approaching valve is fully open and the largest stream of hot water is flowing from the spout.

As the clockwise'movement of handle 35 is continued lower parts of the cam pass over the wheel allowing it to rise and permitting the valve to approach its seat. Thus the hot water stream becomes smaller and smaller as notches 6'7 and 68 in turn engage wheel 30 and pass thereover andwhen larger arc'69 reaches the wheel the latter quickly moves up to bear on zero surface seating the valve and-stopping the flow of hot water from spout 42. It may be noted that during the described operation of the cold water "valve from fully closed to fully open and then to fully closed positions the hot water valve remained closed, and during the described operation of the hot water valve from fully closed to fully open and then to fully closed positions the cold water valveremained fully closed.

Now continued clockwise movement of handle '35 at once brings cam d-d over wheel 22, since this cam has been approaching this wheel during the passing of cam cc thereover and the subsequent passing of cam ee over wheel 30; and larger arc 56 reaches wheel 22 at the same time that wheel 30 leaves larger arc 69 to bear on the zero surface. Cam d-d is by construction only about one-half the height of cams cc and ee, described, and as it is caused to pass over wheel 22 by the continued clockwise movement of handle 35 cold water valve 16, 17 is first raised clear of its seat by the passing of larger are 56 over the wheel and the clearance between the valve and its seat is increased during the passing of notches 57and 58 thereover till the crest of the cam is reached in notch 59 when the cold water valve is but about one-half open and about one-half of a full stream of cold water flows from Cam f-f is of the same height at'said cam d-d and is placed nearly opposite the latter cam so that crest notch 59 of cam dd is on the opposite end of a diameter passing through notch '72 of cam f--f. When notch 58 was over wheel 22 wheel 30 was being depressed by larger are 71, and the hot water valve was being opened while the cold water valve was closely approach- Then larger are 62 passes over wheel 22 while notch 75 engages wheel 30 and less than a half stream of hot water is mixed with a very small stream of cold water, but directly the zero surface 70 reaches wheel 22 the cold water valve closes and hot water alone flows from the spout and of diminishing quantity as notch 76 1s foi- 'lowed by larger are '77, when directly wheel 30 also contacts with the zero surface and the hot water valve also closes and no water leaves the spout.

The range of varying flow of quantity and temperature of water from spout 42 now is complete and handle 35 has moved through less than one-half turn. When it is being returned to its illustrated starting point the reverse of the described sequence occurs; hot water first flowing from the spout, this then being tempered with cold water till the mixture of temperatures ceases with a diminishing flow of cold water. Then hot water alone flows from the spout of increasing quantity till full flow is reached which then decreases till the flow ceases. Then begins a flow of cold water in increasing quantity till full flow thereof is reached which then diminishes till the flow ceases and handle 35 is in its illustrated position. r

The relative location of the cams is but one'of many practical arrangements possible with the illustrated invention, it being evident that a variety of particular reductions to practice is easily possible, providing a corresponding number of difleren tly related flows and temperature mixtures of water.

The serrated cams are used for the benefit of the illustration, since they aid in making a closely detailed description. They are also useful in practice since they retain the valves at desired stages in operation. However, it is practical to use smooth cams especially if a relatively larger cam ring be used. The cam mechanism is also practical with compression valves; but, as shown, it is well suited for use with pressure valves.

Having thus disclosed my invention,- what I claim asnew therein and desire to secure by Letters Patent is,, I

1. Apparatus of the kind described including a pair of bib cocks having separate inlets and a joint outlet, a valve and valve stem fastened thereto mounted for reciprocation in each of said bib cocks, a series ofmovable cams disposed for bearing on said valve stems for opening said valves, means being adapted for moving said cams J for bearing on said valve stems in turn and simultaneously, andmeans for closing said valves.

2. Apparatus of the kind described including a cold water bib cock, a hot water bib cock having its outlet joined with the outlet of said cold water bib cock, two valves and valve stems fastened thereto being mounted in parallel relation in said bib cooks for valve-opening and valve-closing reciprocation, a series of movable cams being disposable for bearing in turn and simultaneouslyon the ends of said valve stems for moving the same longitudinally for opening said valves, means for operating said cams, and means for closing said valves.

3. Apparatus of the kind described including a cold water pressure bib cock and a hot water pressure bib cock having outlets joining a stand pipe, said stand pipe being disposed centrally of I the said bib cocks, a valve stem and valve fastened theretov being mounted in each of said bib cooks for valve-opening and valve-closing reciprocation parallel with and equidistant from the axis of said stand pipe, a cam wheel having a cylindricalflange thereon mounted for oscillation on said stand pipe, a series of cams being on the edge of said flange disposed for hearing in turn or simultaneously as said cam wheel oscillates, on the ends of. said valve stems for moving the same longitudinally for opening said valves, means for oscillating said cam wheel, and means for closing said valves.

r 1 4. Apparatus of the kind described including a cold water pressure bib cock and a hot water pressure bib cock having outlets joining a stand pipe, said stand pipe being disposed centrally of said bib cocks, a spout providing an outlet for said stand pipe mounted for oscillation thereon, a valve stem and valve fastened thereto being mounted in each of the said bib cooks for valveopening and valve-closing reciprocation'parallel with and equidistant from the axis of said stand pipe, a cam wheel having a cylindrical flange thereon mounted for oscillation on said stand pipe with the edge of said flange disposed adjacent the free ends of said valve stems, a' fork on the said free end of each of said valve stems enfolding'the said wheel flange, a wheel mounted for revolution in each of said forks disposed to roll on the edge of said wheel flange, a series of notched cams being on said edge of said flange disposed for bearing in turn or simultaneously, as said cam wheel oscillates. on said valve-stem wheels for moving said valve stems longitudinally for opening said valves, means for oscillating said cam wheel, and means for closing said valves.

STEPHEN J. CARMODY. 

